Rotary feeding and discharging soot blowing furnace

Abstract

The invention discloses a rotary feeding and discharging soot blowing furnace which comprises a furnace body, an endoscope is arranged in the furnace body, a feeding and discharging port and a blocking system are arranged on the furnace body, an in-furnace rotating disc system and a material receiving system are arranged in the furnace body, and an out-furnace rotating disc system and a conveying system are arranged outside the furnace body. A plurality of cupel positions are arranged on the furnace body inner turntable system and the furnace body outer turntable system; wherein the conveying system is used for driving the furnace outer rotating disc system to be close to or far away from the feeding and discharging port, and the material receiving system is used for transferring cupel between the furnace inner rotating disc system and the furnace outer rotating disc system through the feeding and discharging port; the blocking system is used for blocking the feeding and discharging opening in the soot blowing process. By the adoption of the rotary feeding and discharging soot blowing furnace, feeding and discharging of the cupel can be automatically conducted, frequent opening and closing of the furnace door are not needed, and therefore the temperature in the furnace body is kept stable, energy consumption is reduced, and meanwhile emission of harmful gas is reduced.

Description

Technical Field

[0001] This invention relates to the field of metallurgy, and more specifically, to a rotary feed and discharge ash blowing furnace. Background Technology

[0002] The fire-testing ash-blowing furnace is a key piece of equipment in precious metal analysis and testing, mainly used to determine the content of precious metals such as gold and silver. Its core step, "ash blowing," involves placing a lead coin containing precious metals into an ash dish preheated to 900℃ and held at that temperature for 20 minutes. The furnace door is then closed, and the high-temperature environment causes the lead to oxidize and be absorbed by the ash dish, ultimately leaving behind precious metal granules. During operation, after the lead coin melts, the furnace temperature needs to be stabilized at approximately 860℃. Ash blowing continues for about one hour, and the process is marked by two "flashes" on the surface of the granules, indicating that the lead has been largely removed and the precious metals are exposed.

[0003] Most existing ash blowing furnaces are operated manually. This involves manually placing the lead buckle into the furnace and repeatedly opening and closing the furnace door during heating to visually observe whether the ash blowing has reached its endpoint. This method of repeatedly opening the furnace door not only leads to heat loss and reduces the efficiency of the ash blowing experiment, but also carries significant risks due to manual operation, such as burns or poisoning from harmful gases. Furthermore, manual observation is unreliable and can easily miss the ash blowing endpoint, affecting the experimental results.

[0004] In summary, existing ash blowing furnaces are highly dependent on manual operation, which not only results in low efficiency but also causes problems such as large heat loss, high safety risks, and inaccurate endpoint judgment. They urgently need to be improved through automation and intelligent technologies. Summary of the Invention

[0005] One objective of this invention is to provide a new technical solution for a rotary feed and discharge ash blowing furnace.

[0006] According to a first aspect of the present invention, a rotary feed and discharge ash blowing furnace is provided, comprising a furnace body, an endoscope disposed therein, a feed inlet and outlet and a sealing system disposed on the furnace body, an internal rotary table system and a receiving system disposed inside the furnace body, and an external rotary table system and a conveying system disposed outside the furnace body. Both the internal and external rotary table systems are provided with a plurality of ash tray positions; wherein: The conveying system is used to drive the external rotary table system to move closer to or away from the inlet and outlet. The receiving system is used to transfer the ash pan between the internal rotary table system and the external rotary table system through the inlet and outlet. The sealing system is used to seal the inlet and outlet during the ash blowing process.

[0007] Preferably, the diameter of the inlet / outlet is greater than the diameter of the ash pan but less than twice the diameter of the ash pan, and the plug of the sealing system has a conical structure, which can block the inlet / outlet.

[0008] Preferably, the internal turntable system of the furnace includes a tray, an inner turntable, and an internal drive mechanism. The tray is fixed to the furnace body for heat insulation, the inner turntable is rotatably connected to the tray, and the internal drive mechanism is located below the tray and connected to the rotating shaft of the inner turntable.

[0009] Preferably, the receiving system comprises a receiving cylinder and a receiving head, wherein the receiving cylinder can drive the receiving head to extend out of or enter the furnace cavity of the furnace body through the inlet / outlet.

[0010] Preferably, the ash tray position of the inner turntable is a plurality of evenly arranged through holes, the receiving system is located at the bottom of the tray, and the tray is provided with through holes that match the receiving system.

[0011] Preferably, the external rotary table system includes a mounting frame, an external rotary table, and an external drive mechanism. The external rotary table is rotatably connected to the mounting frame, and the external drive mechanism is mounted on the mounting frame and drives the external rotary table to rotate.

[0012] Preferably, the ash dish position of the outer turntable is an ash dish groove with an outer opening evenly distributed around its outer periphery, and the opening of the ash dish groove is larger than the diameter of the piston rod of the receiving cylinder.

[0013] Preferably, both the internal drive mechanism and the external drive mechanism are servo motor drive systems.

[0014] Preferably, the conveying system includes a slide rail perpendicular to the furnace body and a conveying cylinder, the mounting bracket is slidably connected to the slide rail, and the conveying cylinder drives the mounting bracket to move closer to or away from the furnace body.

[0015] Preferably, a plurality of cooling fans are arranged parallel to the slide rail, and the cooling fans are located at the bottom of the outer turntable for cooling the ash dish.

[0016] According to one embodiment of this disclosure, the rotary feed and discharge ash blowing furnace of this application can automatically feed and discharge ash pans without the need for frequent opening and closing of the furnace door, thereby maintaining a stable temperature inside the furnace, reducing energy consumption and lowering the emission of harmful gases. By using an endoscope to observe the endpoint of the ash blowing process, it can be identified in a timely manner and automatically removed, reducing silver loss.

[0017] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0019] Figure 1 This is a schematic diagram of the structure of a rotary feed and discharge ash blowing furnace according to one embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the rotary feed and discharge ash blowing furnace body's turntable system and material receiving system. Figure 3 yes Figure 2 Schematic diagram of the inner turntable; Figure 4 yes Figure 1 Schematic diagram of the external rotary table system of the central furnace; Figure 5 yes Figure 4 A schematic diagram of the conveyor system. Detailed Implementation

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0021] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0022] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0023] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0025] like Figures 1 to 5As shown, a rotary feed and discharge ash blowing furnace according to one embodiment of this application includes a furnace body 100, an endoscope 120 disposed in the furnace body 100, a feed inlet / outlet 110 and a sealing system 400 disposed on the furnace body 100, an internal rotary table 210 system 200 and a receiving system 240 disposed inside the furnace body 100, and an external rotary table 310 system 300 and a conveying system 340 disposed outside the furnace body 100. Both the internal rotary table 210 system 200 and the external rotary table 310 system 300 are provided with a plurality of ash tray positions; wherein: The conveying system 340 is used to drive the external turntable 310 system 300 to approach or move away from the inlet / outlet 110; the receiving system 240 is used to transfer the ash pan through the inlet / outlet 110 between the internal turntable 210 system 200 and the external turntable 310 system 300; the sealing system 400 is used to seal the inlet / outlet 110 during the ash blowing process.

[0026] In this embodiment of the application, the ash-blowing process is carried out manually on the ash-bearing position of the furnace external turntable 310 system 300. After the conveying system 340 approaches the inlet / outlet 110, the receiving system 240 places the ash-bearing vessels one by one into the furnace internal turntable 210 system 200. Then, the sealing system 400 seals the inlet / outlet 110. The ash-blowing process is observed through the endoscope 120 until the test is completed. Then, the receiving system 240 removes the ash-bearing vessels one by one from the furnace body 100 and places them on the furnace external turntable 310 system 300.

[0027] This device eliminates the need for manual opening of the furnace body to place and remove ash trays, greatly reducing safety hazards.

[0028] In this embodiment, the endoscope 120 is installed above the furnace body 100 and extends into the furnace body 100. A cooling device is installed on the outside of the endoscope 120 to cool the camera and prevent damage from high temperature.

[0029] In one embodiment of this application, the diameter of the inlet / outlet 110 is greater than the diameter of the ash pan but less than twice the diameter of the ash pan. The plug of the sealing system 400 has a conical structure and can seal the inlet / outlet 110. The size of the outlet allows the ash pan to enter and exit without affecting the insulation effect due to the opening being too large, thus reducing heat loss.

[0030] In one embodiment of this application, the furnace turntable 210 system 200 includes a tray 220, an inner turntable 210, and an inner drive mechanism 230. The tray 220 is fixed to the furnace body 100 for heat insulation. The inner turntable 210 is rotatably connected to the tray 220. The inner drive mechanism 230 is located below the tray 220 and connected to the rotating shaft of the inner turntable 210. The tray 220 is provided with heat-insulating material, such as heat-insulating cotton or ceramic, to prevent the high temperature in the furnace cavity from damaging the inner drive mechanism 230 below.

[0031] In one embodiment of this application, the receiving system 240 is a receiving cylinder and a receiving head. The receiving cylinder can drive the receiving head to extend out of or enter the furnace cavity of the furnace body 100 through the inlet / outlet 110.

[0032] In one embodiment of this application, the ash dish position of the inner turntable 210 is a plurality of evenly arranged through holes 211, and the receiving system 240 is located at the bottom of the tray 220, and the tray 220 is provided with through holes that match the receiving system 240. During the process of the receiving cylinder driving the receiving head to rise, it supports the ash dish to rise until it extends out of the furnace body 100 through the inlet / outlet 110, and then is received by the furnace outer turntable 310 system 300 to complete the discharge; or after the receiving head extends to receive the ash dish, the furnace outer turntable 310 system 300 retracts, and the receiving cylinder moves downward until the ash dish is placed on the through hole 211 to complete the feeding.

[0033] In one embodiment of this application, the external rotary table 310 system 300 includes a mounting frame 320, an external rotary table 310, and an external drive mechanism 330. The external rotary table 310 is rotatably connected to the mounting frame 320, and the external drive mechanism 330 is mounted on the mounting frame 320 and drives the external rotary table 310 to rotate. Both the external rotary table 310 and the external drive mechanism 330 are mounted on the mounting frame 320 and can move back and forth with the mounting frame 320, while maintaining the drive of the external rotary table 310.

[0034] In one embodiment of this application, the ash dish position of the outer turntable 310 is an ash dish groove 311 with an outer opening evenly distributed around its outer periphery. The opening of the ash dish groove 311 is larger than the diameter of the piston rod of the receiving cylinder. The outer opening allows the receiving head to easily push the ash dish out of the ash dish groove 311, after which the outer turntable 310 retracts, thereby causing the receiving cylinder to pull the ash dish back into the furnace body 100.

[0035] In one embodiment of this application, both the inner drive mechanism 230 and the outer drive mechanism 330 are servo motor drive systems. The servo motor drive system can rotate a certain angle as needed, so that the ash tray 311, the inlet / outlet 110 and the through hole 211 are precisely aligned in a straight line, which facilitates the material receiving system 240 to complete the feeding and discharging actions.

[0036] In one embodiment of this application, the conveying system 340 includes a slide rail 342 perpendicular to the furnace body 100 and a conveying cylinder 341. The mounting frame 320 is slidably connected to the slide rail 342, and the conveying cylinder 341 drives the mounting frame 320 to move closer to or away from the furnace body 100. The conveying cylinder 341 is a pneumatic cylinder or a hydraulic cylinder, and a linear bearing is mounted on the mounting frame 320, which is slidably connected to the slide rail 342.

[0037] In one embodiment of this application, a plurality of cooling fans 500 are arranged parallel to the slide rail 342. The cooling fans 500 are located at the bottom of the outer turntable 310 and are used to cool the ash pan. When the ash pan is discharged, the cooling fans 500 can sequentially cool the ash pan on the outer turntable 310.

[0038] In a specific example of this application, the steps for loading and unloading ash pans using this rotary feeder ash blowing furnace are as follows: The furnace body 100 is heated to the required temperature between 900°C and 1100°C by heating wires, waiting for the ash tray to be loaded; The ash trays are manually placed onto the ash tray 311 of the outer turntable 310, filling them sequentially from number 1 to 25. Simultaneously, the lifting cylinder of the sealing system 400 raises the plug. The conveying cylinder 341 retracts, causing the outer turntable 310 to move closer to the inlet / outlet 110 until the No. 1 ash dish is aligned with the inlet / outlet 110 and is located directly below the plug. The receiving cylinder rises, extends the inlet / outlet 110 upwards to catch the No. 1 ash dish, pushes the ash dish out and lifts it up. The conveying cylinder 341 extends so that the outer turntable 310 moves away from the inlet / outlet 110. Then the receiving cylinder falls down and the ash dish is placed on the inner turntable 210. The rotary servo motor rotates a certain angle, which is transmitted to the inner turntable 210 through the synchronous belt pulley to rotate a certain angle, thus completing the feeding of the No. 1 ash dish.

[0039] The servo motor of the outer turntable 310 rotates at a certain angle, and through the synchronous belt pulley, it rotates at a certain angle, so that the No. 2 ash dish is aligned with the inlet / outlet 110.

[0040] Repeat the above steps to sequentially insert ash pans 2 through 25 into the furnace; the lifting cylinder of the sealing system 400 lowers the plug. The feeding process is complete.

[0041] Once preheating is complete, reverse the motion to discharge the ash tray, and manually place the lead buckle inside.

[0042] Repeat the above steps to sequentially insert ash pans 2 through 25 into the furnace for ash blowing.

[0043] During the ash blowing process, observation is conducted through an endoscope 120. At the station where ash blowing is completed first, the inner turntable 210 is rotated at a certain angle by a rotary servo motor until the ash dish is aligned with the inlet / outlet 110. At the same time, the lifting cylinder drives the plug to rise. The receiving cylinder rises to catch the ash dish as it is ejected from the furnace. The conveying cylinder 341 retracts, causing the ash dish trough 311 of the outer turntable 310 to move below the ash dish. The receiving cylinder then falls, and the ash dish lands on the outer turntable 310. The conveying cylinder 341 then extends, causing the outer turntable 310 to move out of the inlet / outlet 110, thus completing the ash dish discharge.

[0044] According to one embodiment of this disclosure, the rotary feed and discharge ash blowing furnace of this application can automatically feed and discharge ash pans without frequent opening and closing of the furnace door, thereby maintaining the temperature stability within the furnace body 100, reducing energy consumption and reducing the emission of harmful gases. Using an endoscope 120 to observe the endpoint of the ash blowing process allows for timely identification and automatic removal, reducing silver loss.

[0045] It should be noted that the above detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0048] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] In the detailed description above, reference has been made to the accompanying drawings, which form part of this document. In the drawings, similar symbols typically identify similar parts unless the context otherwise indicates otherwise. The illustrated embodiments described in the detailed specification, drawings, and claims are not intended to be limiting. Other embodiments may be used and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotary feed and discharge ash blowing furnace, comprising a furnace body, wherein an endoscope is installed in the furnace body, characterized in that, The furnace body is equipped with inlet and outlet ports and a sealing system. Inside the furnace body are an internal turntable system and a receiving system. Outside the furnace body are an external turntable system and a conveying system. Both the internal and external turntable systems have several ash tray positions. The conveying system is used to drive the external rotary table system to move closer to or away from the inlet and outlet. The receiving system is used to transfer the ash pan between the internal rotary table system and the external rotary table system through the inlet and outlet. The sealing system is used to seal the inlet and outlet during the ash blowing process. The plug of the sealing system has a conical structure and can seal the inlet and outlet.

2. The rotary feed and discharge ash blowing furnace according to claim 1, characterized in that, The diameter of the inlet and outlet is greater than the diameter of the ash dish but less than twice the diameter of the ash dish.

3. The rotary feed and discharge ash blowing furnace according to claim 1, characterized in that, The furnace body turntable system includes a tray, an inner turntable, and an inner drive mechanism. The tray is fixed to the furnace body for heat insulation. The inner turntable is rotatably connected to the tray. The inner drive mechanism is located below the tray and is connected to the rotating shaft of the inner turntable.

4. The rotary feed and discharge ash blowing furnace according to claim 3, characterized in that, The receiving system consists of a receiving cylinder and a receiving head. The receiving cylinder can drive the receiving head to extend out of or into the furnace cavity of the furnace body through the inlet and outlet.

5. The rotary feed and discharge ash blowing furnace according to claim 4, characterized in that, The inner turntable has several evenly arranged through holes for the ash tray position. The receiving system is located at the bottom of the tray, and the tray is provided with through holes that match the receiving system.

6. The rotary feed and discharge ash blowing furnace according to claim 4, characterized in that, The furnace body external turntable system includes a mounting frame, an external turntable, and an external drive mechanism. The external turntable is rotatably connected to the mounting frame, and the external drive mechanism is mounted on the mounting frame and drives the external turntable to rotate.

7. The rotary feed and discharge ash blowing furnace according to claim 6, characterized in that, The ash dish position of the outer turntable is an ash dish groove with an outer opening evenly distributed around its outer periphery, and the opening of the ash dish groove is larger than the diameter of the piston rod of the receiving cylinder.

8. The rotary feed and discharge ash blowing furnace according to claim 6, characterized in that, Both the internal drive mechanism and the external drive mechanism are servo motor drive systems.

9. The rotary feed and discharge ash blowing furnace according to claim 6, characterized in that, The conveying system includes a slide rail and a conveying cylinder arranged perpendicular to the furnace body. The mounting bracket is slidably connected to the slide rail, and the conveying cylinder drives the mounting bracket to move closer to or away from the furnace body.

10. The rotary feed and discharge ash blowing furnace according to claim 9, characterized in that, Several cooling fans are arranged parallel to the slide rail. The cooling fans are located at the bottom of the outer turntable and are used to cool the ash pan.

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